I am not reading the rest of this thread because I do not have time to deal with ridiculous mac rumor users... I will check back and answer questions but I have a brief to finish.
1) Is this in the United States? If so, you should know that the legal profession is in the midst of a horrible transition and I know unemployed 2009 and 2010 grads from schools like Columbia, UVA, Duke, UGA, and Berkley. The flood of new lawyers have driven down the pay.... there are ADAs that start out making less than paramedics (and they only need a GED).
2) If you do insist on going, you need a laptop with 4gb of ram because MS Word is a terrible ram hog.
3) The only reason you probably need a laptop is for exams; most of the exam software is something like EBB (electronic bluebook).
4) American professors don't teach the law, they ask a bunch of stupid questions.... just realize you shouldn't be typing all the time.
5) If you are in an American law school, buy
http://www.amazon.com/Getting-Maybe-Excel-School-Exams/dp/0890897603 . Law school exams are only graded on organization and style... By my third year i was prepping 8-9 hours for an exam w/ an old outline after having done none of the reading for the entire semester and getting better grades than my 1L year when I read everything.